Turbocharger with journal bearing

A turbocharger assembly comprising:

• a housing that comprises a through bore extending from a compressor side to a turbine side of the housing;
• a locating plate attached to the compressor side of the housing wherein the locating plate comprises a keyed opening;
• and
• a journal bearing disposed in the through bore of the housing wherein the journal bearing comprises a keyed annular groove disposed intermediate a compressor end and a turbine end of the journal bearing wherein the keyed opening of the locating plate and the keyed annular groove of the journal bearing axially and azimuthally locate the journal bearing in the through bore of the housing and wherein the journal bearing comprises at least one lubricant bore that extends from a surface of a bore of the journal bearing to a surface of the keyed annular groove.

A method comprising:

• providing a turbocharger assembly that comprises
• a housing that comprises a through bore extending from a compressor side to a turbine side of the housing;
• a locating plate attached to the compressor side of the housing wherein the locating plate comprises a keyed opening;
• and
• a journal bearing disposed in the through bore of the housing wherein the journal bearing comprises a keyed annular groove disposed intermediate a compressor end and a turbine end of the journal bearing;
• operating the turbocharger assembly;
• axially and azimuthally locating the journal bearing in the through bore of the housing via contacting the keyed annular groove of the journal bearing and the keyed opening of the locating plate;
• and
• providing lubricant to the housing and flowing a portion of the lubricant to the keyed annular groove of the journal bearing via a lubricant passage between a surface of a bore of the journal bearing and a surface of the keyed annular groove.